Climate Overview
The climate in Yuzhno-Sakhalinsk is cool. The average annual temperature is 3°C and approximately 939mm of precipitation falls per year. Yuzhno-Sakhalinsk receives a notable amount of rainfall throughout the year, including during its driest month. Yuzhno-Sakhalinsk is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to -15°C. Yuzhno-Sakhalinsk experiences heavy snowfall, typically from January through December.
Temperature
Temperatures in Yuzhno-Sakhalinsk vary considerably across the year, with a 34°C difference between the coldest and warmest months. August is the warmest month, though highs remain moderate at 19°C with a mean of 17°C. January brings the harshest conditions, with lows dropping to -15°C and an average temperature of -12°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.
Precipitation
Yuzhno-Sakhalinsk is a moderately rainy area, receiving approximately 939mm of precipitation annually, which averages out to around 78mm per month. The wettest month is August, averaging 150mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 40mm. That's 110mm less than August, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Yuzhno-Sakhalinsk receives heavy snowfall, accumulating around 207cm annually from January through December. The snowiest month is January, with approximately 42cm. Winter travel should account for significant snow cover.
Wind
Yuzhno-Sakhalinsk is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 8km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 23km/h in winter, 22km/h in spring, 19km/h in summer, 24km/h in autumn.
Seasons
84 days until Summer
It is currently spring in Yuzhno-Sakhalinsk, which began on March 20, 2026. Yuzhno-Sakhalinsk is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 19°C, while the coldest stretch bottoms out in January near -15°C. Summer is next, beginning on June 21, 2026 — 84 days from now.
Spring
Temperatures range from -7 to 10°C. Precipitation is moderate at around 203mm for the season, averaging 68mm per month. Winds are moderate at around 22km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 8 to 19°C. Rainfall is heavy, totalling around 331mm across the season with a monthly average of 110mm. Winds are moderate at around 19km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from -3 to 17°C. Precipitation is moderate at around 266mm for the season, averaging 89mm per month. Expect around 34cm of snow accumulation during this period. Winds are moderate at around 24km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -15 to -5°C. Rainfall is relatively light, with around 140mm over the season and a monthly average of 47mm. Expect around 99cm of snow accumulation during this period. Winds are moderate at around 23km/h. Heavy layering and insulated outerwear are essential — exposed skin should be minimised outdoors.
Best Time to Visit
The best time to visit Yuzhno-Sakhalinsk is during July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 89mm per month. By contrast, August can be uncomfortably hot with highs reaching 19°C, while January is the coldest period with lows dropping to -15°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Yuzhno-Sakhalinsk based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
